body, td, th { font-family: sans-serif; }
.active { background-color: aliceblue; }

/* tree-item component */
.tree { list-style-type: none; }
.tree div { position: relative; }
.tree .expander { cursor: pointer; color: silver; }
.tree ul { padding-left: 10px; }
.tree .value { color: silver; }
.tree .description { position: absolute; right: 15px; text-align: right; }
.tree div:hover { background-color: aliceblue; }

span.oaie,
span.oaie::before,
span.oaie::after {
	content: 'OAIE';
	position: absolute;
	display: inline-block;
	height: 1em;
	width: 1em;
	border: 0.1em solid yellowgreen;
	top: 0em;
	box-sizing: border-box;
}
span.oaie::before {
	content: '\00a0\00a0\00a0\00a0|';
	color: gold;
	border-color: tomato;
	left: -1.8em;
	border-radius: 1em;
	text-align: left;
	top: -0.1em;
}
span.oaie::after {
	color: transparent;
	border-color: steelblue;
	left: -0.5em;
	top: 0.7em;
	border-right: none;
	border-bottom: none;
	transform: rotate(45deg);
	transform-origin: 0 0;
	outline-left: 0.1em solid yellow;
	outline-offset: 0.4em;
}
span.oaie {
	position: relative;
	left: 0px;
	top: 0px;
	margin: 0 25px;
	border-right: none;
	line-height: 60%;
	padding-left: 0.45em;
	white-space: nowrap;
	color: green;
}
span.oaie::first-letter { color: yellowgreen; }
